Today I was fooling around with my new Lab environment when I noticed my Path Selection Policy (PSP) was set to fixed while the array (Clariion CX4-120) most definitely supports Round Robin (RR). I wrote about it in the past(1, 2) but as with vSphere 4.1 the commands slightly changed I figured it wouldn’t hurt to write it down again: [...]

Customer requested output for all HBA controllers of the ESXi hosts. Because ESXi is used we decided to do generate this output through the vMA appliance. Here is how we did this: * optional * $ ssh vi-admin@vMA.appliance $ vifp addserver ESXi_Host $ vifp listservers output: host1.environment   ESXi host2.environment   ESXi vCenter.environment  vCenter * optional * The above was just [...]

I was troubleshooting VMware Data Recovery today and found an interesting article in the VMware KB for enabling verbose logging for Data Recovery through the GUI instead of by modifying the datarecovery.ini: To view Verbose Data Recovery logs: In the vSphere Client, select Home > Solutions and Applications > VMware Data Recovery. Enter the virtual machine name or IP address of the backup [...]

I was asked why Data Recovery was only running one single job at a time instead of multiple concurrent. After some investigations I found out that the administrator changed the configured memory for the appliance to 8Gb where 2Gb is the default. The Knowledge base article clearly states the following about this: This issue may occur if the configuration of [...]

Steve Herrod just announced the in my opinion the best fling so far on twitter. Thinapped vSphere Client Run vSphere client 4.1 in a snap. No install, just download the EXE and double-click. Place the ThinApped vSphere client on any network share and it will automatically stream to any Windows PC with no installation, agents, drivers, or specialized servers required. [...]

Back in the days when Servers still had 8GB or 16GB memory at most a setting was introduced that guaranteed the hypervisor had a certain amount of free memory to its disposal. The main purpose of this being of course stability of the system. As with any Operating System free memory is desirable to ensure it is available whenever a [...]

After 14 emails with absolutely no reply whatsoever our book, vSphere 4.1 HA and DRS Technical Deepdive, popped up on both the German and UK version of Amazon. For those who haven’t ordered it yet through comcol.nl you can also get it here: Amazon.de Amazon.co.uk Sorry about the delay and I hope they will continue selling it for a very [...]